package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;
import java.util.List;
import java.util.Set;

/**
 * 菜品管理
 */
@RestController
@RequestMapping("/admin/dish")
@Api(tags = "菜品相关接口")
@Slf4j
public class DishController {

    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 新增菜品
     *
     * @param dishDTO
     * @return
     */
    @PostMapping
    @ApiOperation("新增菜品")
    @CacheEvict(cacheNames = "dish_*",allEntries = true)
    public Result save(@RequestBody DishDTO dishDTO) {
        log.info("新增菜品：{}", dishDTO);
        dishService.saveWithFlavor(dishDTO);//后绪步骤开发
        //清理缓存数据
//        String key="dish_"+dishDTO.getCategoryId();
//        cleanCache(key);
        return Result.success();
    }

    @ApiOperation("菜品分页查询")
    @GetMapping("/page")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO) {
        log.info("菜品分页查询:{}", dishPageQueryDTO);
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);//后绪步骤定义
        return Result.success(pageResult);
    }

    /**
     * 批量删除菜品
     *
     * @param ids
     */
    @ApiOperation("批量删除菜品")
    @CacheEvict(cacheNames = "dish_*",allEntries = true)
    @DeleteMapping
    public Result delete(@RequestParam List<Long> ids) {
        log.info("批量删除菜品，ids：{}", ids);
        dishService.deleteBatch(ids);//后绪步骤定义

//        cleanCache("dish_*");
        return Result.success();
    }

    /**
     * 根据id查询菜品
     * @param id
     * @return
     */

    @ApiOperation("根据id查询菜品")
    @GetMapping("/{id}")
    public Result<DishVO> getById(@PathVariable Long id) {
        log.info("根据id查询菜品：{}", id);
        DishVO dishVO = dishService.getByIdWithFlavor(id);//后绪步骤定义
        return Result.success(dishVO);
    }
    /**
     * 修改菜品
     * @param dishDTO
     */
    @ApiOperation("修改菜品")
    @CacheEvict(cacheNames = "dish_*",allEntries = true)
    @PutMapping
    public Result update(@RequestBody DishDTO dishDTO) {
        log.info("修改菜品：{}", dishDTO);
        dishService.updateWithFlavor(dishDTO);//后绪步骤定义
//        cleanCache("dish_*");
        return Result.success();
    }
    /**
     * 根据分类id查询菜品
     * @param categoryId
     * @return
     */
    @ApiOperation("根据分类id查询菜品")
    @CacheEvict(cacheNames = "dishCache",key="#categoryId")
    @GetMapping("/list")
    public Result<List<Dish>> list(Long categoryId) {
//        //构造redis中的key，规则：dish_分类id
//        String key = "dish_" + categoryId;
        //查询redis中是否存在菜品数据
//        List<Dish> list = (List<Dish>) redisTemplate.opsForValue().get(key);
//        if (list != null || list.size() > 0) {
//            return Result.success(list);
//        }
        log.info("根据分类id查询菜品：{}", categoryId);
        List<Dish> list = dishService.list(categoryId);//后绪步骤定义
        return Result.success(list);
    }
    /**
     * 菜品起售停售
     *
     * @param status
     * @param id
     * @return
     */
    @PostMapping("/status/{status}")
    @CacheEvict(cacheNames = "dish_*",allEntries = true)
    @ApiOperation("菜品起售停售")
    public Result<String> startOrStop(@PathVariable Integer status, Long id) {
        dishService.startOrStop(status, id);

        //将所有的菜品缓存数据清理掉，所有以dish_开头的key
//        cleanCache("dish_*");

        return Result.success();
    }

    /**
     * 清理缓存数据
     * @param pattern
     */
//    private void cleanCache(String pattern){
//        Set keys = redisTemplate.keys(pattern);
//        redisTemplate.delete(keys);
//    }
}